Quadruple ESD transient voltage suppressor

Monolithic transient voltage suppressor diode in a six lead SOT457 (SC-74) package for 4-bit wide ESD transient suppression at 20 V level.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
BZA420A BZA420A,115 934045750115 SOT457 Order product
BZA420A BZA420A,165 934045750165 SOT457 Order product
BZA420A BZA420A,135 934045750135 SOT457 Order product
BZA420A BZA420A,125 934045750125 SOT457 Order product
BZA420A/G BZA420A/G,115 934058384115 SOT457 Order product


  • ESD rating >8 kV, according to IEC1000-4-2
  • SOT457 surface mount package
  • Common anode configuration
  • Non-clamping range -0.5 to 20 V
  • Maximum reverse peak power dissipation: 19.6 W at tp=1 ms
  • Maximum clamping voltage at peak pulse current: 28 V at Izsm = 0.7 A.
  • AEC-Q101 qualified

Target applications

  • Computers and peripherals
  • Audio and video equipment
  • Communication systems
  • Medical equipment.


Type numberPackage nameNo of protected linesConfigurationVRWM (V)VESD IEC61000-4-2 (kV)
BZA420ASC-74; TSOP64Unidirectional158


Type numberPackageOutline versionReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
SC-74; TSOP6
SOT457Reel 7" Q1/T1ActiveZ0BZA420A,115
( 9340 457 50115 )
Reel 11" Q3/Q4 SMDActiveZ0BZA420A,165
( 9340 457 50165 )
Reel 11¼" Q1/T1 in LargePackActiveZ0BZA420A,135
( 9340 457 50135 )
Reel 7" Q3/T4, ReverseActiveZ0BZA420A,125
( 9340 457 50125 )

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFRMTBF (hour)MSLMSL leadfree
BZA420ABZA420A,115BZA420Aweek 22, 2003111.00.521.92E911
BZA420ABZA420A,165BZA420Aweek 22, 2003111.00.521.92E911
BZA420ABZA420A,135BZA420Aweek 22, 2003111.00.521.92E911
BZA420ABZA420A,125BZA420Aweek 22, 2003111.00.521.92E911
Quality and reliability disclaimer

Documentation (9)

File nameTitleTypeDate
BZA420AQuadruple ESD transient voltage suppressorData sheet1999-05-19
BZA420A_Nexperia_Product_ReliabilityBZA420A Nexperia Product ReliabilityQuality document2019-04-29
BZA420A_Nexperia_Product_QualityBZA420A Nexperia Product QualityQuality document2019-05-20
BZA420ABZA420A SPICE modelSPICE model2012-07-22
SOT457_165TSOP6; reel pack; reversed product orientation; 12NC ending 165Packing2012-11-30
SOT457_135Tape reel SMD; standard product orientation 12NC ending 135Packing2012-11-30
SOT457_125Tape reel SMD; reversed product orientation 12NC ending 125Packing2012-11-30
SOT457_115TSOP6; Tape reel SMD; standard product orientation 12NC ending 115Packing2012-11-30
SOT457plastic, surface-mounted package (SC-74; TSOP6); 6 leadsOutline drawing2018-11-28


If you are in need of design/technical support, let us know and fill in the answer form, we'll get back to you shortly.


File nameTitleTypeDate
BZA420ABZA420A SPICE modelSPICE model2012-07-22

Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingBuy online
BZA420ABZA420A,115934045750115Reel 7" Q1/T1Order product
BZA420ABZA420A,165934045750165Reel 11" Q3/Q4 SMDOrder product
BZA420ABZA420A,135934045750135Reel 11¼" Q1/T1 in LargePackOrder product
BZA420ABZA420A,125934045750125Reel 7" Q3/T4, ReverseOrder product
BZA420A/GBZA420A/G,115934058384115Reel 7" Q1/T1Order product


As a Nexperia customer you can order samples via our sales organization or directly via our Online Sample Store:

Sample orders normally take 2-4 days for delivery.

If you do not have a direct account with Nexperia our network of global and regional distributors is available and equipped to support you with Nexperia samples.